$72+ Cheap flights from Ontario (ONT) to Wisconsin
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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Cheapest flights from Ontario to WisconsinExplore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
Explore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 4/218:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/10![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1512:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 5/198:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/9![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:33 pm
ONT
- MSP
1 stop28h 25m
Frontier
Mon 4/276:45 am
MSP
- ONT
1 stop19h 10m
Frontier
Deal found 3/5![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Mon 4/2011:47 am
MSP
- ONT
1 stop13h 56m
Frontier
Deal found 3/5![Frontier logo]()
$190
This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:33 pm
ONT
- MSP
1 stop15h 29m
Frontier
Tue 4/288:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/9![Frontier logo]()
$192
This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Wed 4/2211:15 am
MSP
- ONT
1 stop22h 16m
Frontier
Deal found 3/9![Frontier logo]()
$197
This CheapOair deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:43 pm
ONT
- MSP
1 stop28h 15m
Frontier
Thu 5/76:45 am
MSP
- ONT
1 stop26h 46m
Frontier
Deal found 3/6![Frontier logo]()
$201
This CheapOair deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:33 pm
ONT
- MKE
1 stop22h 11m
Frontier
Mon 4/205:05 pm
MKE
- ONT
1 stop8h 50m
Frontier
Deal found 3/8![Frontier logo]()
$201
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Wed 4/2211:15 am
MSP
- ONT
1 stop22h 16m
Frontier
Deal found 3/9![Frontier logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Fri 5/111:57 am
MSP
- ONT
2 stops13h 58m
Frontier
Deal found 3/5![Frontier logo]()
$204
This Expedia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sat 4/187:50 am
MSP
- ONT
1 stop25h 36m
Frontier
Deal found 3/6![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Fri 4/2411:57 am
MSP
- ONT
1 stop14h 01m
Frontier
Deal found 3/7![Frontier logo]()
$212
Best flights from Ontario to WisconsinDiscover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
Discover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:34 pm
ONT
- ORD
1 stop8h 56m
United Airlines
Tue 4/148:05 pm
ORD
- ONT
Nonstop4h 26m
United Airlines
Deal found 3/9![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:59 pm
ONT
- MSN
1 stop9h 14m
Delta
Tue 8/115:55 pm
MSN
- ONT
2 stops7h 49m
Delta
Deal found 3/6![Delta logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
ONT
- MKE
1 stop30h 13m
Alaska Airlines
Wed 5/67:00 am
MKE
- ONT
1 stop28h 45m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:08 pm
ONT
- MSN
1 stop6h 24m
American Airlines
Tue 5/59:18 am
MSN
- ONT
2 stops11h 06m
American Airlines
Deal found 3/7![American Airlines logo]()
$424
This Frontier deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:20 am
ONT
- MSN
1 stop10h 52m
Frontier
Sun 4/57:57 pm
MSN
- ONT
1 stop5h 59m
Frontier
Deal found 3/5![Frontier logo]()
$444
This Southwest deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/303:35 pm
ONT
- MKE
1 stop5h 50m
Southwest
Sat 6/65:20 am
MKE
- ONT
2 stops10h 20m
Southwest
Deal found 3/9![Southwest logo]()
$462
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:00 am
ONT
- MSN
1 stop6h 00m
United Airlines
Tue 5/123:33 pm
MSN
- ONT
1 stop7h 03m
United Airlines
Deal found 3/8![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 pm
ONT
- MSN
2 stops10h 13m
Delta
Tue 5/56:00 am
MSN
- ONT
2 stops8h 14m
Delta
Deal found 3/8![Delta logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
ONT
- MSP
1 stop7h 16m
Alaska Airlines
Fri 4/175:12 pm
MSP
- ONT
1 stop8h 47m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/61:20 pm
ONT
- MKE
1 stop5h 55m
Delta
Mon 4/137:25 am
MKE
- ONT
1 stop6h 49m
Delta
Deal found 3/7![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:05 am
ONT
- MSP
1 stop9h 12m
United Airlines
Sat 4/115:19 pm
MSP
- ONT
1 stop7h 12m
United Airlines
Deal found 3/5![United Airlines logo]()
$392
This Alaska Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:00 am
ONT
- ORD
1 stop10h 26m
Alaska Airlines
Tue 4/72:09 pm
ORD
- ONT
1 stop8h 14m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:55 pm
ONT
- ORD
2 stops12h 06m
Delta
Sat 5/212:46 pm
ORD
- ONT
2 stops11h 57m
Delta
Deal found 3/8![Delta logo]()
$359
This Southwest deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:05 am
ONT
- MSP
2 stops9h 30m
Southwest
Mon 4/133:40 pm
MSP
- ONT
2 stops7h 00m
Southwest
Deal found 3/7![Southwest logo]()
$486
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:00 am
ONT
- MKE
1 stop6h 31m
United Airlines
Sat 5/162:38 pm
MKE
- ONT
1 stop7h 58m
United Airlines
Deal found 3/5![United Airlines logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:00 am
ONT
- ORD
1 stop15h 59m
Alaska Airlines
Tue 4/142:09 pm
ORD
- ONT
1 stop8h 14m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
ONT
- DLH
1 stop9h 07m
United Airlines
Wed 4/223:08 pm
DLH
- ONT
1 stop9h 23m
United Airlines
Deal found 3/5![United Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:49 pm
ONT
- GRB
1 stop8h 12m
Delta
Sat 5/911:06 am
GRB
- ONT
2 stops12h 42m
Delta
Deal found 3/6![Delta logo]()
$419
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/111:58 pm
ONT
- CWA
2 stops9h 03m
American Airlines
Sun 4/511:31 am
CWA
- ONT
2 stops11h 53m
American Airlines
Deal found 3/6![American Airlines logo]()
$564
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:00 am
ONT
- MSP
1 stop15h 59m
Alaska Airlines
Wed 4/83:01 pm
MSP
- ONT
1 stop7h 22m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:10 am
ONT
- MSN
1 stop7h 28m
United Airlines
Sat 4/253:53 pm
MSN
- ONT
1 stop8h 38m
United Airlines
Deal found 3/7![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:55 pm
ONT
- ORD
2 stops12h 44m
Delta
Sat 5/161:44 pm
ORD
- ONT
2 stops11h 01m
Delta
Deal found 3/9![Delta logo]()
$420
This American Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:35 pm
ONT
- LSE
2 stops12h 00m
American Airlines
Wed 4/225:40 am
LSE
- ONT
2 stops9h 38m
American Airlines
Deal found 3/8![American Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
ONT
- GRB
1 stop7h 53m
United Airlines
Wed 4/222:48 pm
GRB
- ONT
1 stop9h 43m
United Airlines
Deal found 3/6![United Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
ONT
- MKE
1 stop7h 44m
Alaska Airlines
Mon 6/17:00 am
MKE
- ONT
1 stop10h 09m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:59 pm
ONT
- MKE
1 stop8h 24m
Delta
Sat 8/82:45 pm
MKE
- ONT
1 stop9h 24m
Delta
Deal found 3/5![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:00 am
ONT
- ATW
1 stop6h 11m
United Airlines
Sat 4/252:54 pm
ATW
- ONT
1 stop9h 37m
United Airlines
Deal found 3/7![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
ONT
- MKE
1 stop7h 17m
Delta
Sat 9/1212:20 pm
MKE
- ONT
1 stop7h 41m
Delta
Deal found 3/6![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:00 am
ONT
- ATW
1 stop7h 48m
United Airlines
Sat 5/98:35 am
ATW
- ONT
1 stop6h 03m
United Airlines
Deal found 3/6![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3010:00 pm
ONT
- MKE
1 stop9h 08m
Delta
Sat 6/64:02 pm
MKE
- ONT
1 stop7h 46m
Delta
Deal found 3/7![Delta logo]()
$457
Last-minute flights from Ontario to WisconsinDiscover last-minute flight deals from Ontario to Wisconsin. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wisconsin. Data last updated March 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 4/218:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/10![Frontier logo]()
$149
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Wed 4/2211:15 am
MSP
- ONT
1 stop22h 16m
Frontier
Deal found 3/9![Frontier logo]()
$203
This Frontier deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Fri 4/2411:57 am
MSP
- ONT
1 stop14h 01m
Frontier
Deal found 3/7![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Mon 4/2011:47 am
MSP
- ONT
1 stop13h 56m
Frontier
Deal found 3/5![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:33 pm
ONT
- MKE
1 stop22h 11m
Frontier
Mon 4/205:05 pm
MKE
- ONT
1 stop8h 50m
Frontier
Deal found 3/8![Frontier logo]()
$201
This Expedia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sat 4/187:50 am
MSP
- ONT
1 stop25h 36m
Frontier
Deal found 3/6![Frontier logo]()
$211
This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Wed 4/2211:15 am
MSP
- ONT
1 stop22h 16m
Frontier
Deal found 3/9![Frontier logo]()
$197
This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 4/288:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/9![Frontier logo]()
$213
This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:33 pm
ONT
- MSP
1 stop15h 29m
Frontier
Tue 4/288:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/9![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:33 pm
ONT
- MSP
1 stop28h 25m
Frontier
Mon 4/276:45 am
MSP
- ONT
1 stop19h 10m
Frontier
Deal found 3/5![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Fri 5/111:57 am
MSP
- ONT
2 stops13h 58m
Frontier
Deal found 3/5![Frontier logo]()
$204
This CheapOair deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:43 pm
ONT
- MSP
1 stop28h 15m
Frontier
Thu 5/76:45 am
MSP
- ONT
1 stop26h 46m
Frontier
Deal found 3/6![Frontier logo]()
$201
One-way flights from Ontario to WisconsinSearch for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
Search for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This Trip.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Deal found 3/9![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:29 pm
ONT
- ORD
1 stop9h 18m
Frontier
Deal found 3/6![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Deal found 3/10![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:29 pm
ONT
- ORD
1 stop9h 18m
Frontier
Deal found 3/5![Frontier logo]()
$76
This Trip.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:44 pm
ONT
- ORD
1 stop8h 24m
Frontier
Deal found 3/10![Frontier logo]()
$83
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:59 pm
ONT
- ORD
1 stop7h 09m
Frontier
Deal found 3/6![Frontier logo]()
$84
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:44 pm
ONT
- ORD
1 stop8h 24m
Frontier
Deal found 3/6![Frontier logo]()
$85
This WAYA deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:59 pm
ONT
- ORD
1 stop6h 26m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:20 pm
ONT
- ORD
1 stop7h 48m
Frontier
Deal found 3/9![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
- ORD
1 stop8h 24m
Frontier
Deal found 3/10![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:29 pm
ONT
- ORD
1 stop9h 18m
Frontier
Deal found 3/9![Frontier logo]()
$90
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:59 am
ONT
- MSP
1 stop11h 55m
Frontier
Deal found 3/6![Frontier logo]()
$91
Find flight deals from Ontario to Wisconsin
Keep the following information in mind while searching for Ontario to Wisconsin flight deals. Data was last updated March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $168 (Kiwi.com) |
One-way from | $72 (Trip.com) |
Popular in | January |
Cheapest in | September |
Average price | $448 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Wisconsin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from Ontario to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioChicago
ONT - ORD
ONTORD
Ontario
Tue 4/7
1:34 pm-12:30 am
1 stop8h 56m
Chicago O'Hare Intl
Tue 4/14
8:05 pm-10:31 pm
Nonstop4h 26m
$307
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Wed 5/6
7:00 am-3:00 pm
1 stop6h 00m
Madison Truax Field
Tue 5/12
3:33 pm-8:36 pm
1 stop7h 03m
$329
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Tue 8/4
10:59 pm-10:13 am
1 stop9h 14m
Madison Truax Field
Tue 8/11
5:55 pm-11:44 pm
2 stops7h 49m
$334
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Fri 5/1
10:15 pm-10:28 am
2 stops10h 13m
Madison Truax Field
Tue 5/5
6:00 am-12:14 pm
2 stops8h 14m
$339
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Tue 4/28
6:00 am-2:13 pm
1 stop30h 13m
Milwaukee-Mitchell
Wed 5/6
7:00 am-9:45 am
1 stop28h 45m
$343
Quickest round-trip
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Mon 4/6
1:20 pm-9:15 pm
1 stop5h 55m
Milwaukee-Mitchell
Mon 4/13
7:25 am-12:14 pm
1 stop6h 49m
$357
OntarioChicago
ONT - ORD
ONTORD
Ontario
Thu 4/30
5:55 pm-8:01 am
2 stops12h 06m
Chicago O'Hare Intl
Sat 5/2
12:46 pm-10:43 pm
2 stops11h 57m
$359
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Wed 4/15
7:00 am-4:16 pm
1 stop7h 16m
Minneapolis St Paul
Fri 4/17
5:12 pm-11:59 pm
1 stop8h 47m
$382
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Wed 4/8
11:05 am-10:17 pm
1 stop9h 12m
Minneapolis St Paul
Sat 4/11
5:19 pm-10:31 pm
1 stop7h 12m
$392
OntarioChicago
ONT - ORD
ONTORD
Ontario
Wed 4/1
6:00 am-6:26 pm
1 stop10h 26m
Chicago O'Hare Intl
Tue 4/7
2:09 pm-8:23 pm
1 stop8h 14m
$394
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Ontario with our price prediction graph.
ONT-MSP
ONT-ORD
ONT-MSN
ONT-MKE
ONT-DLH
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Wisconsin
ONT-USWI
ONT-MSP
ONT-ORD
ONT-MSN
ONT-MKE
What is the cheapest month to book a flight from Ontario to Wisconsin?
Currently, May is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $94). Flying from Ontario to Wisconsin in January is currently the most expensive (average of $265). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Wisconsin
Get insights into the airlines that provide service to Wisconsin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wisconsin. Reviews last updated March 10, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Wisconsin. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Wisconsin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Wisconsin
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Complete your trip
Complete your trip to Wisconsin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Wisconsin by cabin class
Find flights from Ontario to Wisconsin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Wisconsin flights
Browse other Ontario and Wisconsin flight options. Last updated on March 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Wisconsin flights
Consider these flights traveling from Ontario to Wisconsin.
Top 4 airlines flying from Ontario to Wisconsin
Discover the top 4 airlines that operate flights from Ontario to Wisconsin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$253 | Average$442 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$276 | Average$588 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$502 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$326 | Average$404 | FlexibilityNo cancel fee | On-time63% |